Please, check our SMD/THT services - smd.lotharek.pl; from idea to ready devices
Please, check our SMD/THT services - smd.lotharek.pl; from idea to ready devices
ROM switcher for ATARI 8bit
How does it work ?
After power on ONLY, initial RESET button state is stored by flip-flop clocked by 10ms rising edge. Data input is 1 for RESET buton NOT pressed, 0 for pressed. Stored input selects "half" of programmed flash memory. Simple end efficient.
STEP BY STEP:
That is all :-)
if You are lucky and Your atari OS ROM is socketed, upgrade will take 30 seconds. If not - longer ;-) - desoldering time :-)
! v1 video
DISCLAIMER: not for ULTIMATE 1MB users.
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